---
title: "16 16 16 Fertilizer — $46K/yr Amazon US Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/us/patio-lawn-garden/16-16-16-fertilizer"
last_updated: "2026-08-09T10:03:28.293Z"
locale: en
meta:
description: "Niche score 46/100 · $46K/yr market · 31K searches/yr · $32.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 46/100 · $46K/yr market · 31K searches/yr · $32.13 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "16 16 16 Fertilizer — $46K/yr Amazon US Niche (2026) - Flapen"
---
# **16 16 16 fertilizer**
**Skip it**
Brand-locked demand (top 5 brands take 100% of clicks) — this niche doesn't clear our bar today.
Market size 11Growth 64Conversion 55Competition 13Returns 98Price range 94Avg price 95Brand share 0Review moat 88Quality gap 38
**Returns**
**Incredible****0.4%**
return rate — above 5% kills the launch gate
**Avg price**
**Incredible****$32.13**
avg listing price — sweet spot $15–$100
**Price range**
**Great****$14.32–$73.71**
cheapest to priciest tracked listing — scored on the share inside $15–$100
**Review moat**
**Great****236.67**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Good****+42.2%**
90-day search growth — must beat 0% to launch
**Conversion**
**Good****4.6%**
search→purchase rate — share of searches ending in a sale
**Quality gap**
**Okay****4.5★**
avg incumbent rating — lower means beatable quality
**Competition**
**Bad****85%**
top-5 click share — a locked-up shelf
**Market size**
**Bad****$46K**
$46K/yr · 31K searches
**Brand share**
**Bad****100%**
top-5 brand share — brand-locked demand
According to Flapen's Amazon United States niche tracking, 16 16 16 fertilizer is a $46K/yr Amazon United States market (31K searches/yr). The top 5 brands hold 100% of demand. Demand peaks in Mar–Apr–May–Jun. Verdict: Skip it — 46/100.
Data updated Jul 15, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **16 16 16 fertilizer market data**
- **Units sold / yr**
- **2K–2K**
- avg 100–250/product
- **Revenue / yr**
- **$48K–$64K**
- units × avg price
- **Conversion rate**
- **4.6%**
- **Avg BSR**
- **#427**
- **Page quality**
- **0%**
- **Prime**
- **67%**
- **Sponsored**
- **89%**
- **Out of stock**
- **0.0%**
- **Avg brand age**
- **81 months**
- **Avg seller age**
- **150 days**
## **Competition & brand share**
The top 5 products capture 85% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**4 **▼falling
**Sellers**
**14**
**Top-5 brand share**
**100%**
Top 20: 100%
**Top-5 click share**
**85%**
Top 20: 100%
**Open market**
**0%**
- Supply Solutions57% - Knox Fertilizer22% - GARDENWISE17% - Grow More4% - Open — no brand owns it (0%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — +42.2% search growth over the last 90 days.
2K1KSpike '25Spike '26 seasonSepDecMarJunAugNovMarMay
Peak months: Mar, Apr, May, Jun · busiest ÷ quietest = 4.0×
[**Open Trend **](https://flapen.com/research/us/patio-lawn-garden/16-16-16-fertilizer/trend)
## **Top 16 16 16 fertilizer search terms**
- **16-16-16 fertilizer**11K/yr+44.8%3.7% conv. - **16 16 16 fertilizer**11K/yr+52.7%4.0% conv. - **triple 16 fertilizer**5K/yr+37.7%3.5% conv. - **16-16-16 all purpose fertilizer**4K/yr+18.2%3.5% conv. [**All search terms **](https://flapen.com/research/us/patio-lawn-garden/16-16-16-fertilizer/search-terms)
## **Top 16 16 16 fertilizer products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%$7K30%$14K45%$20K60%$27K101001K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 9 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 5lbs**Supply Solutions**$25.33**4.5★373 rev](https://www.amazon.com/dp/B0CCBW8NK6) [2**20lb 16-16-16 Fertilizer**Knox Fertilizer**$40.15**4.6★42 rev](https://www.amazon.com/dp/B07K5627R1) [3**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 10lbs**Supply Solutions**$32.86**4.5★373 rev](https://www.amazon.com/dp/B0CCBQCZCR) [4**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (1/2 Quart)**GARDENWISE**$14.32**4.5★62 rev](https://www.amazon.com/dp/B0CTY7HN12) [5**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (2 Quarts)**GARDENWISE**$19.73**4.5★62 rev](https://www.amazon.com/dp/B0CTY8J92N)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (1/2 Quart)**GARDENWISE**$14.32**62 rev2y ago](https://www.amazon.com/dp/B0CTY7HN12) [**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (2 Quarts)**GARDENWISE**$19.73**62 rev2y ago](https://www.amazon.com/dp/B0CTY8J92N) [**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (1 Quart)**GARDENWISE**$16.74**62 rev2y ago](https://www.amazon.com/dp/B0CTY7VSVH) [**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 25lbs**Supply Solutions**$49.87**373 rev2y ago](https://www.amazon.com/dp/B0CCBWD61X) [**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 50lbs**Supply Solutions**$73.71**373 rev2y ago](https://www.amazon.com/dp/B0D2Z8KG6K)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (2 Quarts)**GARDENWISE**$19.73**4.5★**▲ 45%**](https://www.amazon.com/dp/B0CTY8J92N) [**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (1 Quart)**GARDENWISE**$16.74**4.5★**— 8%**](https://www.amazon.com/dp/B0CTY7VSVH) [**20lb 16-16-16 Fertilizer**Knox Fertilizer**$40.15**4.6★**— 7%**](https://www.amazon.com/dp/B07K5627R1) [**Supply Solutions 16-16-16 Complete Lawn & Garden All Purpose Granular Fertilizer - The Ultimate Plant Food for Lush Greenery & Vibrant Blooms - for All Plants Vegetables Fruits and Berries - 50lbs**Supply Solutions**$73.71**4.5★**— 1%**](https://www.amazon.com/dp/B0D2Z8KG6K) [**GARDENWISE 16-16-16 All Purpose Professional Fertilizer - Lawn Flower Tree Shrub & Vegetable Garden Fertilizer (1/2 Quart)**GARDENWISE**$14.32**4.5★**— 1%**](https://www.amazon.com/dp/B0CTY7HN12)
**~~View all trending →~~**
## **What buyers say about 16 16 16 fertilizer**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Plant Growth**58%
*“Plants have all been very happy since Ive been giving them this”*
**Quality-Overall**18%
*“Great product”*
**Value For Money**8%
*“Good price”*
**Advertised Vs Actual Product**5%
*“is everything that I expected it to be”*
**Recycle/Reuse**5%
*“The resealable bag was nice”*
**Color**3%
*“a lush green”*
**Instructions/User Manual/Troubleshooting**3%
*“Follow instructions and you will have happy trees”*
### **What buyers complain about **
**Value For Money**50%
*“Too expensive”*
**Advertised Vs Actual Product**25%
*“Bag was not weight as promised”*
**Weight Heavy**25%
*“Bag was not weight as promised”*
### **Top return reasons **
**Value For Money**35%
**Size-Overall**23%
**Advertised Vs Actual Product**22%
**Functionality-Overall**10%
**Moist/Dry**3%
**Plant Growth**3%
**Defective Material/Parts**3%
## **Common questions**
- **Is 16 16 16 fertilizer profitable to sell on Amazon United States?**
- The niche generates $46K/yr across 9 tracked products. 90-day search growth is +42.2%. Flapen's verdict: Skip it (46/100).
- **How competitive is the 16 16 16 fertilizer niche?**
- 4 brands and 14 sellers compete. The top 5 products take 85% of clicks and top 5 brands hold 100% of demand.
- **What do buyers complain about in 16 16 16 fertilizer?**
- Top complaints mined from reviews: Value For Money, Advertised Vs Actual Product, Weight Heavy. The return rate is 0.4%.
- **When does demand for 16 16 16 fertilizer peak?**
- Demand peaks in Mar–Apr–May–Jun; the busiest month runs 4.0× the quietest.
- **What does it cost to enter the 16 16 16 fertilizer niche?**
- Listings span $14.32–$73.71; the average listing price is $32.13 (sweet spot $15–$100). The average incumbent carries 237 reviews — the moat a new listing must climb.
## **Related niches in Patio, Lawn & Garden**
- 82 [**lawn aerator**](https://flapen.com/research/us/patio-lawn-garden/lawn-aerator)$6.2M/yr+90.1%**Launch it**- 82 [**shepherds hooks for outdoor**](https://flapen.com/research/us/patio-lawn-garden/shepherds-hooks-for-outdoor)$3.9M/yr+141.2%**Launch it**- 82 [**garden mesh**](https://flapen.com/research/us/patio-lawn-garden/garden-mesh)$716K/yr+152.7%**Worth a look**- 83 [**chicken waterer**](https://flapen.com/research/us/patio-lawn-garden/chicken-waterer)$3.4M/yr+70.1%**Launch it**- 83 [**75 foot garden hose**](https://flapen.com/research/us/patio-lawn-garden/75-foot-garden-hose)$1.8M/yr+117.6%**Launch it**- 83 [**bird deterrents for outside**](https://flapen.com/research/us/patio-lawn-garden/bird-deterrents-for-outside)$2.1M/yr+131.5%**Launch it**[**All Patio, Lawn & Garden niches **](https://flapen.com/research/us/patio-lawn-garden)